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Instruction Manual
IM-106-340AC-1, Rev. 1.0
April 2005
SPS 4001B
http://www.processanalytic.com
Section 3 Operation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Calibration Requirements . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Reference Air Flow Setup . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3
Calibration Gas Flow Setup . . . . . . . . . . . . . . . . . . . . . . . . page 3-3
Automatic Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3
Semi-automatic Calibration . . . . . . . . . . . . . . . . . . . . . . . . page 3-4
OVERVIEW
This section specifies the requirements to set up an Oxymitter 4000
calibration and how to verify the calibration gas flow setup. It also explains the
differences between automatic and semi-automatic calibrations and how to
initiate them.
CALIBRATION
REQUIREMENTS
Calibration Gas Tanks
Two tanks of precision calibration gas mixtures are required. Recommended
calibration gases are nominally 0.4% and 8.0% oxygen in nitrogen.
Do not use 100% nitrogen as a low gas (zero gas). It is suggested that gas for the low (zero)
be between 0.4% and 2.0% O
2
. Do not use gases with hydrocarbon concentrations of more
than 40 parts per million. Failure to use proper gases will result in erroneous readings.